Campbell CR9000X, Инструкция по эксплуатации

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Overview
OV-17
Operating temperature range is -40° to +70°C (specifications valid over this range unless otherwise specified).
Non-condensing environment required. To maintain specifications, yearly recalibrations are recommended.
Inputs
Number of differential
input channels:
6
Programmable anti-aliasing implemented with finite-impulse-response filters
Output sample rate f
SAMPLE
programmable: 50 ksamples s
-1
to 5 samples s
-1
Sample ratio f
SAMPLE
/f
PASS
programmable: 2.5, 5, 10, or 20
Top of the pass band f
PASS
Bottom of the stop band f
STOP
Transition band rolloff f
PASS
/f
STOP
Sample Ratio f
PASS
f
STOP
f
PASS
/f
STOP
2.5 f
SAMPLE
/2.5 f
SAMPLE
/2.01 1.24
5 f
SAMPLE
/5 f
SAMPLE
/3.37 1.48
10 f
SAMPLE
/10 f
SAMPLE
/5.08 1.97
20 f
SAMPLE
/20 f
SAMPLE
/6.81 2.94
Linear phase response: group delay is independent of frequency
Pass band ripple:
≤
0.01 dB
Stop band attenuation:
≥
90 dB
Group delay: 36 / f
SAMPLE
Channel-to-channel
sampling simultaneity:
≤
100 nsec
CR9052 measurement rates
Non-burst: 15 ksamples s
-1
, aggregate*
Bursting to PC FLASH card: 50 ksamples s
-1
, aggregate*
Bursting to rotating media
PC card
100 ksamples s
-1
, aggregate*
Bursting to 8-Msample
buffer on filter module:
300 ksamples s
-1
, aggregate per module**
* The aggregate rate is the sum of the measurement rates on all channels
**The aggregate per module rate is the sum of measurement rates on all channels of a single filter module
Analog Input Full-Scale Dynamic Range
Differential Ranges Noise Performance ( f
PASS
=10 Hz) CMRR
Š
±5000 mV 50 µV + 600 nV * sqrt ( f
PASS
) 106 dB -70 dB
±1000 mV 10 µV + 150 nV * sqrt ( f
PASS
) 106 dB -70 dB
±200 mV 2 µV + 30 nV * sqrt ( f
PASS
) 106 dB -83 dB
±50 mV 0.5 µV + 12 nV * sqrt ( f
PASS
) 106 dB -95 dB
±20 mV 0.25 µV + 8 nV * sqrt ( f
PASS
) 103 dB -103 dB
Š
CMRR = common-mode rejection ratio = common-mode gain / differential-mode gain.
CMRR specified from dc to 500 Hz.
Gain accuracy: ± 0.03 percent of reading
Offset accuracy: ± 0.03 percent of full-scale input range
Input resistance: 1 x 10
9
Ω
Input time constant: 1 k
Ω
x 100 pF = 100 nsec
Input offset current:
≤
35 nA
Common-mode input range: +15 to -5 V
Channel-to-channel crosstalk:
≤
-120 dB
CR9052DC Specifications